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Drawbar Pin Dimensions and Requirements for Towing Machine with Clevis
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgASAE ANSI/ASABE S625.1 July 2018
Keywords: Drawbar pin, Hitch pin, Pin strength, Towed equipment, Towing hitch
1 Purpose and Scope
This standard establishes dimensional and minimum strength requirements for agricultural drawbar hitch pins used in single point attaching of a towed machine to towing machines or leading machines. Application of this standard assumes a clevis on the towing machine conforming to ANSI/ASABE AD 6489-3:2004 and a ring on the towed machine conforming to ASABE/ISO 21244:2008. Additionally, this standard defines loading conditions for drawbar pin retention systems.
When the towing machine does not conform to ANSI/ASABE AD 6489-3:2004 or the towed machine does not conform to ASABE/ISO 21244:2008, fit and performance of pins designed per this standard may be affected. However, usage of applicable specifications derived from this standard is encouraged for such cases.
Note: ANSI/ASABE AD6489-3:2004 and ASABE/ISO 21244:2008 provide essential information related to tractor drawbars and associated implement hitch rings.(Download PDF) (Export to EndNotes)